Numerical simulation study reveals high seismic vulnerability in older single-story precast industrial buildings, indicating the urgent need for structural retrofitting.
Key Points
Assess the probabilistic seismic vulnerability regarding usability-preventing damage and global collapse performance levels for single-story precast buildings constructed under historical Italian design standards.
Modelled four non-residential single-story precast concrete buildings designed according to Italian building codes spanning from the 1960s to the 1990s.
Simulated structural seismic responses across three geographic sites characterized by progressively increasing seismic hazard.
Quantified vulnerability thresholds corresponding to usability-preventing structural damage and total building collapse.
Poor structural detailing inherent to older design codes significantly degrades the earthquake response of precast systems.
Seismic vulnerability levels scale with historical construction vintage and local hazard zonation, driving heightened risks of damage and collapse in older facilities.